CN110308593A - A kind of production method of alignment film - Google Patents
A kind of production method of alignment film Download PDFInfo
- Publication number
- CN110308593A CN110308593A CN201910503859.7A CN201910503859A CN110308593A CN 110308593 A CN110308593 A CN 110308593A CN 201910503859 A CN201910503859 A CN 201910503859A CN 110308593 A CN110308593 A CN 110308593A
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- diffusion
- alignment liquid
- subregion
- area
- viewing area
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 26
- 238000009792 diffusion process Methods 0.000 claims abstract description 137
- 239000007788 liquid Substances 0.000 claims abstract description 126
- 238000005507 spraying Methods 0.000 claims abstract description 90
- 239000000758 substrate Substances 0.000 claims abstract description 56
- 239000011248 coating agent Substances 0.000 claims abstract description 29
- 238000000576 coating method Methods 0.000 claims abstract description 29
- 238000000034 method Methods 0.000 claims abstract description 10
- 239000007921 spray Substances 0.000 claims description 13
- 239000004973 liquid crystal related substance Substances 0.000 abstract description 12
- 238000010586 diagram Methods 0.000 description 8
- 230000001788 irregular Effects 0.000 description 5
- 238000001723 curing Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000007641 inkjet printing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000001029 thermal curing Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/13378—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation
Abstract
The production method that the present invention discloses a kind of alignment film, the following steps are included: providing substrate, viewing area and diffusion anomaly area are formed on the working face of substrate, diffusion anomaly area is adjacent to viewing area setting, diffusion anomaly area includes the subregion that at least one alignment liquid diffusion conditions is different from viewing area: providing alignment liquid coating strategy, alignment liquid coating strategy is related to the distribution situation in diffusion anomaly area on the working face of substrate and diffusion conditions；Alignment liquid is sprayed on the working face of substrate according to alignment liquid coating strategy, so that alignment liquid is evenly distributed in viewing area and diffusion anomaly area；Curing process is carried out to alignment liquid.The spraying strategy of alignment liquid considers the distribution situation and diffusion conditions in viewing area periphery diffusion anomaly area, the suitable spraying strategy of difference selection based on position diffusion conditions different on substrate, so that alignment liquid is evenly distributed in viewing area and diffusion anomaly area, to produce the more uniform smooth alignment film of film surface, liquid crystal display panel periphery is avoided to generate light leakage phenomena.
Description
Technical field
The present invention relates to a kind of field of display technology, and in particular to a kind of production method of alignment film.
Background technique
In the generating process of TFT-LCD liquid crystal display panel, being coated on alignment liquid (PI) on substrate is needed, makes orientation
Film.There is the viewing area of surfacing in the middle part of substrate, viewing area periphery is usually laid with electronic component.Due to these electronic components
Lay, on substrate the peripheral region of viewing area there may be raised or sunken, cause alignment liquid these regions diffusivity not
It is same as the viewing area in the middle part of substrate.Such as having the position of protrusion that may stop alignment liquid that alignment liquid is caused to flow back, cause part
Alignment film is blocked up, and may then have drainage to alignment liquid at groove position, causes local orientation lepthymenia, if according to biography
The mode of the even application of system carries out the spraying of alignment liquid, and the corner areas thickness that may cause alignment liquid in substrate is irregular, from
And liquid crystal display panel periphery is caused to generate light leakage phenomena.
Summary of the invention
The production method that the main object of the present invention is to provide a kind of alignment film, it is intended to improve in the prior art, alignment film
The technical issues of spraying is uneven, and liquid crystal display panel periphery is caused to generate light leakage phenomena.
To achieve the above object, the present invention provides a kind of production method of alignment film, comprising the following steps:
Substrate is provided, viewing area and diffusion anomaly area are formed on the working face of the substrate, the diffusion anomaly area is adjacent
It is connected to the viewing area setting, the diffusion anomaly area includes that at least one alignment liquid diffusion conditions is different from the viewing area
Subregion；
Alignment liquid coating strategy, the alignment liquid coating strategy and diffusion anomaly area on the working face of the substrate are provided
Distribution situation is related to diffusion conditions；
Alignment liquid is sprayed on the working face of the substrate according to alignment liquid coating strategy, so that the alignment liquid
It is evenly distributed in the viewing area and the diffusion anomaly area；
Curing process is carried out to the alignment liquid.
Optionally, strategy, the working face of alignment liquid the coating strategy and the substrate are coated in the offer alignment liquid
In the distribution situation in the upper diffusion anomaly area step related to diffusion conditions, the alignment liquid coating strategy includes:
Corresponding spraying boundary is set according to the distribution situation of the subregion in the diffusion anomaly area and alignment liquid diffusion conditions；
Setting sprays alignment liquid on the working face of the substrate according to the spraying boundary.
Optionally, the subregion includes the first subregion that diffusion conditions are higher than the viewing area；
Deviate in first subregion and the viewing area adjoiner to the viewing area side on the spraying boundary.
Optionally, the subregion includes the second subregion that diffusion conditions are lower than the viewing area；
Deviate in the viewing area adjoiner to second subregion side in second subregion on the spraying boundary.
Optionally, strategy, the working face of alignment liquid the coating strategy and the substrate are coated in the offer alignment liquid
In the distribution situation in the upper diffusion anomaly area step related to diffusion conditions, the alignment liquid coating strategy includes:
If it is dense to set corresponding spraying according to the distribution situation of the subregion in the diffusion anomaly area and alignment liquid diffusion conditions
Degree；
Setting sprays alignment liquid on the working face of the substrate according to the spraying concentration.
Optionally, the subregion includes the first subregion that diffusion conditions are higher than the viewing area；
The spraying concentration of first subregion is higher than the spraying concentration of the viewing area.
Optionally, the subregion includes the second subregion that diffusion conditions are lower than the viewing area；
The spraying concentration of second subregion is lower than the spraying concentration of the viewing area.
Optionally, strategy, the working face of alignment liquid the coating strategy and the substrate are coated in the offer alignment liquid
In the distribution situation in the upper diffusion anomaly area step related to diffusion conditions, the alignment liquid coating strategy includes:
Corresponding spraying quantity is set according to the distribution situation of the subregion in the diffusion anomaly area and alignment liquid diffusion conditions；
Setting sprays alignment liquid on the working face of the substrate according to the spraying quantity.
Optionally, the subregion includes the first subregion that diffusion conditions are higher than the viewing area；
The spraying quantity of first subregion is lower than the spraying quantity of the viewing area.
Optionally, the subregion includes the second subregion that diffusion conditions are lower than the viewing area；
The spraying quantity of second subregion is higher than the spraying quantity of the viewing area.
In the technical solution provided by the present invention, the production method of alignment film is the following steps are included: provide substrate, the base
Viewing area and diffusion anomaly area are formed on the working face of plate, the diffusion anomaly area is adjacent to the viewing area setting, described
Diffusion anomaly area includes the subregion that at least one alignment liquid diffusion conditions is different from the viewing area: providing alignment liquid coating plan
Slightly, the alignment liquid coating strategy is related to the distribution situation in diffusion anomaly area on the working face of the substrate and diffusion conditions；
Alignment liquid is sprayed on the working face of the substrate according to alignment liquid coating strategy, so that the alignment liquid is described aobvious
Show that area and the diffusion anomaly area are evenly distributed；Curing process is carried out to the alignment liquid.
The spraying strategy of alignment liquid considers the distribution situation and diffusion conditions in viewing area periphery diffusion anomaly area, is based on base
The suitable spraying strategy of the difference selection of different position diffusion conditions on plate, so that alignment liquid is in viewing area and diffusion anomaly area
It is evenly distributed, to produce the more uniform smooth alignment film of film surface, liquid crystal display panel periphery is avoided to generate light leakage phenomena.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 provides the structural schematic diagram of substrate in the production method of alignment film for the present invention；
Fig. 2 is the flow diagram of the production method first embodiment of alignment film provided by the invention；
Fig. 3 is the flow diagram of the production method second embodiment of alignment film provided by the invention；
Fig. 4 is the flow diagram of the production method 3rd embodiment of alignment film provided by the invention；
Fig. 5 is the flow diagram of the production method fourth embodiment of alignment film provided by the invention.
Drawing reference numeral explanation:
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
In the generating process of TFT-LCD liquid crystal display panel, being coated on alignment liquid (PI) on substrate is needed, makes orientation
Film.For the structure of substrate referring to Fig. 1, having viewing area 11 in the middle part of substrate 1,11 periphery of viewing area is usually laid with electronics member
Part.Due to the laying of these electronic components, there may be raised or sunken, formation is matched for the peripheral region of viewing area 11 on substrate 1
It is different from the diffusion anomaly area 12 at 1 middle part of substrate to the diffusivity of liquid.Such as there is the position of protrusion alignment liquid may be stopped to lead
Alignment liquid reflux is caused, causes local alignment film blocked up, and may then have drainage to alignment liquid at groove position, leads to part
Orientation is lepthymenia.If carrying out the spraying of alignment liquid in the way of traditional even application, alignment liquid may cause in substrate
Corner areas thickness it is irregular, so as to cause liquid crystal display panel periphery generate light leakage phenomena.
In order to improve in the prior art, alignment film spraying is uneven, and liquid crystal display panel periphery is caused to generate the skill of light leakage phenomena
Art problem, primary solutions of the invention are:
The present invention provides a kind of production method of alignment film.First embodiment according to the present invention, referring to Fig. 2, the party
Method includes:
Step S10: providing substrate, be formed with viewing area 11 and diffusion anomaly area 12 on the working face of the substrate 1, described
Diffusion anomaly area 12 is adjacent to the viewing area 11 and is arranged, and the diffusion anomaly area 12 includes at least one alignment liquid diffusion conditions
Different from the subregion (121,122) of the viewing area；
It should be noted that in this example it is shown that area 11 refers to the middle part of substrate 1, surface is opposed flattened, alignment liquid expansion
The region that scattered condition is relatively close to.And diffusion anomaly area 12 refers to that diffusion conditions are different from viewing area 11 to alignment liquid on substrate 1
Region, and diffusion anomaly area 12 is adjacent to the viewing area 11 and is arranged.There may be due to electronic component in diffusion anomaly area 12
The concaveconvex structure formed is laid, the diffusion conditions of alignment liquid is caused to be different from opposed flattened viewing area 11.For example, there is protrusion
Position may stop alignment liquid that alignment liquid is caused to flow back, the diffusion conditions of the alignment liquid in the region are lower than viewing area 11, are the
Two subregions 122.And may then have drainage to alignment liquid at groove position, cause alignment liquid to be easier to spread in the region,
It is higher than the first subregion 121 of viewing area 11 for the diffusion conditions of alignment liquid.
Step S20: providing alignment liquid coating strategy, and the alignment liquid is coated with strategy and spreads on the working face of the substrate
The distribution situation of exceptions area is related to diffusion conditions；
It should be noted that due on substrate 1, the presence of viewing area 11 and diffusion anomaly area 12, if gamut is uniformly sprayed
Applying alignment liquid may cause substrate in the gage distortion of the adjoiner alignment film in diffusion anomaly area 12 and viewing area 11.For this purpose, this
Embodiment provides alignment liquid spraying strategy and sets orientation according to the distribution situation and diffusion conditions in diffusion anomaly area 12 on substrate
Practical plans when liquid sprays, the quantity of the range, spraying that including but not limited to spray and the concentration of spraying, so that alignment liquid exists
The diffusion in viewing area 11 and diffusion anomaly area 12 is uniform, forms the relatively uniform alignment film of thickness.
Step S30: alignment liquid is sprayed on the working face of the substrate according to alignment liquid coating strategy, so that institute
Alignment liquid is stated to be evenly distributed in the viewing area and the diffusion anomaly area；
In this step, those skilled in the art can according to actual needs flexible choice spraying concrete mode.At this
In embodiment, preferably spraying is inkjet printing.
Step S40: curing process is carried out to the alignment liquid.
It in this step, can be after alignment liquid be spread uniformly, using conventional Thermocuring equipment or uv equipment pair
Alignment liquid carries out curing process, forms alignment film.
In the present embodiment, the spraying strategy of alignment liquid considers the distribution situation and expansion in viewing area periphery diffusion anomaly area
The condition of dissipating, the suitable spraying strategy of difference selection or formulation based on position diffusion conditions different on substrate, so that alignment liquid
It is evenly distributed in viewing area and diffusion anomaly area, to produce the more uniform smooth alignment film of film surface, avoids liquid crystal display panel
Periphery generates light leakage phenomena.
Referring to Fig. 3, Fig. 3 is the flow diagram of the production method second embodiment of alignment film provided by the invention；
Based on above-mentioned first embodiment, in the step S20, the alignment liquid coating strategy specifically includes following step
It is rapid:
Step S201: corresponding according to the distribution situation of the subregion in the diffusion anomaly area and the setting of alignment liquid diffusion conditions
Spraying boundary；
Specifically, in this step, diffusion anomaly area 12 may include first point that diffusion conditions are higher than the viewing area
Area 121 and/or diffusion conditions are lower than the second subregion 122 of the viewing area.If according to traditional rectangle spraying boundary, due to expanding
The presence of scattered exceptions area 12 will lead to locally sprayed irregular.For this purpose, specific diffusion item of the spraying boundary 2 according to diffusion anomaly area 12
The distribution situation of the subregion of part obtains.
In the present embodiment, spraying boundary refers to when spraying alignment liquid, limits the profile of spraying range, defines spraying
Specific range, but be not the shape of the alignment film of final molding.The alignment film shape of final molding is that alignment liquid diffusion is uniform,
And the shape after solidifying.
Specifically, the spraying boundary 2 is in first subregion 121 and 11 adjoiner of viewing area to the viewing area
Deviate, deviate in 11 adjoiner of viewing area to 122 side of the second subregion in second subregion 122 in 11 sides.Such as
This, in the case where diffusion conditions are good, spraying boundary 2 is relatively distant from the first subregion 121, thus will not degree of diffusing through, and expanding
In the case that the condition of dissipating is bad, relatively close second subregion 122 in spraying boundary 2, so as to preferably spread the past.In this way,
Alignment liquid, compared to traditional spraying method, is distributed more uniform after diffusion.
Step S202: setting sprays alignment liquid on the working face of the substrate according to the spraying boundary.
In the present embodiment, according to viewing area 11 on substrate, the distribution of the first subregion 121 and the second subregion 122 and specific
Diffusion conditions, setting spraying alignment liquid spraying boundary 2, reasonably control spraying range so that alignment liquid is in viewing area 11
It is evenly distributed with diffusion anomaly area 12, to produce the more uniform smooth alignment film of film surface, liquid crystal display panel periphery is avoided to produce
Raw light leakage phenomena.
Referring to Fig. 4, Fig. 4 is the flow diagram of the production method 3rd embodiment of alignment film provided by the invention；
Based on above-mentioned first embodiment, in the step S20, the alignment liquid coating strategy specifically includes following step
It is rapid:
Step S201A: it is corresponded to according to the distribution situation of the subregion in the diffusion anomaly area and the setting of alignment liquid diffusion conditions
Spraying concentration；
Specifically, in this step, diffusion anomaly area 12 may include first point that diffusion conditions are higher than the viewing area
Area 121 and/or diffusion conditions are lower than the second subregion 122 of the viewing area.If according to concentration spraying uniform everywhere in tradition, by
Presence in diffusion anomaly area 12 will lead to locally sprayed irregular.For this purpose, the distribution of spraying concentration is according to diffusion anomaly area 12
The distribution situation of the subregion of specific diffusion conditions obtains.Specifically, it is higher than in the spraying concentration of first subregion 121 described aobvious
The spraying concentration for showing area 11 is lower than the spraying concentration of the viewing area 11 in the spraying concentration of second subregion 122.In this way,
Higher in the diffusion liquid spraying concentration of the first subregion 121 in the case where diffusion conditions are good, alignment liquid mobility is poor to not
It can spread excessively, and in the case where diffusion conditions are bad, alignment liquid lower in the diffusion liquid spraying concentration of the second subregion 122
Mobility is preferable, so as to preferably spread the past.In this way, alignment liquid is after diffusion, compared to traditional spraying method,
It is distributed more uniform.
Step S202A: setting sprays alignment liquid on the working face of the substrate according to the spraying concentration.
In the present embodiment, according to viewing area 11 on substrate, the distribution of the first subregion 121 and the second subregion 122 and specific
Diffusion conditions, setting spraying alignment liquid spraying concentration, the spraying concentration in each area is reasonably controlled, so that alignment liquid is being shown
Area 11 and diffusion anomaly area 12 are evenly distributed, to produce the more uniform smooth alignment film of film surface, avoid liquid crystal display panel all
Side generates light leakage phenomena.
Referring to Fig. 5, Fig. 5 is the flow diagram of the production method fourth embodiment of alignment film provided by the invention；
Based on above-mentioned first embodiment, in the step S20, the alignment liquid coating strategy specifically includes following step
It is rapid:
Step S201B: it is corresponded to according to the distribution situation of the subregion in the diffusion anomaly area and the setting of alignment liquid diffusion conditions
Spraying quantity；
Specifically, in this step, diffusion anomaly area 12 may include first point that diffusion conditions are higher than the viewing area
Area 121 and/or diffusion conditions are lower than the second subregion 122 of the viewing area.If according to concentration quantity uniform everywhere in tradition, by
Presence in diffusion anomaly area 12 will lead to locally sprayed irregular.For this purpose, the distribution of spraying quantity is according to diffusion anomaly area 12
The distribution situation of the subregion of specific diffusion conditions obtains.Specifically, aobvious lower than described in the spraying quantity of first subregion 121
The spraying quantity for showing area 11 is higher than the spraying quantity of the viewing area 11 in the spraying quantity of second subregion 122.In this way,
In the case where diffusion conditions are good, in the diffusion liquid spraying negligible amounts of the first subregion 121, thus will not degree of diffusing through, and
It is higher in the diffusion liquid spraying quantity of the second subregion 122 in the case that diffusion conditions are bad, so as to preferably diffuse through
It goes.In this way, alignment liquid after diffusion, compared to traditional spraying method, is distributed more uniform.
The control mode of the spraying quantity can there are many, such as control the unit time quantity for spray, or control spray
Apply the time.
Step S202B: setting sprays alignment liquid on the working face of the substrate according to the spraying quantity.
In the present embodiment, according to viewing area 11 on substrate, the distribution of the first subregion 121 and the second subregion 122 and specific
Diffusion conditions, setting spraying alignment liquid in the spraying quantity in each area, the spraying concentration in each area is reasonably controlled, so that alignment liquid
It is evenly distributed in viewing area 11 and diffusion anomaly area 12, to produce the more uniform smooth alignment film of film surface, avoids liquid crystal
Panel periphery generates light leakage phenomena.
The foregoing is merely optionally embodiments of the invention, are not intended to limit the scope of the invention, it is all
Under inventive concept of the invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/transport indirectly
It is included in used in other related technical areas in scope of patent protection of the invention.
Claims (10)
1. a kind of production method of alignment film, which comprises the following steps:
Substrate is provided, is formed with viewing area and diffusion anomaly area on the working face of the substrate, the diffusion anomaly area is adjacent to
The viewing area setting, the diffusion anomaly area include point that at least one alignment liquid diffusion conditions is different from the viewing area
Area；
Alignment liquid coating strategy, the distribution of the alignment liquid coating strategy and diffusion anomaly area on the working face of the substrate are provided
Situation is related to diffusion conditions；
Alignment liquid is sprayed on the working face of the substrate according to alignment liquid coating strategy, so that the alignment liquid is in institute
Viewing area and the diffusion anomaly area is stated to be evenly distributed；
Curing process is carried out to the alignment liquid.
2. the production method of alignment film as described in claim 1, which is characterized in that it is coated with strategy in the offer alignment liquid,
The tactful step relevant to the distribution situation in diffusion anomaly area on the working face of the substrate and diffusion conditions of alignment liquid coating
In rapid, the alignment liquid coating strategy includes:
Corresponding spraying boundary is set according to the distribution situation of the subregion in the diffusion anomaly area and alignment liquid diffusion conditions；
Setting sprays alignment liquid on the working face of the substrate according to the spraying boundary.
3. the production method of alignment film as claimed in claim 2, which is characterized in that the subregion includes that diffusion conditions are higher than institute
State the first subregion of viewing area；
Deviate in first subregion and the viewing area adjoiner to the viewing area side on the spraying boundary.
4. the production method of alignment film as claimed in claim 2, which is characterized in that the subregion includes diffusion conditions lower than institute
State the second subregion of viewing area；
Deviate in the viewing area adjoiner to second subregion side in second subregion on the spraying boundary.
5. the production method of alignment film as described in claim 1, which is characterized in that it is coated with strategy in the offer alignment liquid,
The tactful step relevant to the distribution situation in diffusion anomaly area on the working face of the substrate and diffusion conditions of alignment liquid coating
In rapid, the alignment liquid coating strategy includes:
Corresponding spraying concentration is set according to the distribution situation of the subregion in the diffusion anomaly area and alignment liquid diffusion conditions；
Setting sprays alignment liquid on the working face of the substrate according to the spraying concentration.
6. the production method of alignment film as claimed in claim 5, which is characterized in that the subregion includes that diffusion conditions are higher than institute
State the first subregion of viewing area；
The spraying concentration of first subregion is higher than the spraying concentration of the viewing area.
7. the production method of alignment film as claimed in claim 5, which is characterized in that the subregion includes diffusion conditions lower than institute
State the second subregion of viewing area；
The spraying concentration of second subregion is lower than the spraying concentration of the viewing area.
8. the production method of alignment film as described in claim 1, which is characterized in that it is coated with strategy in the offer alignment liquid,
The tactful step relevant to the distribution situation in diffusion anomaly area on the working face of the substrate and diffusion conditions of alignment liquid coating
In rapid, the alignment liquid coating strategy includes:
Corresponding spraying quantity is set according to the distribution situation of the subregion in the diffusion anomaly area and alignment liquid diffusion conditions；
Setting sprays alignment liquid on the working face of the substrate according to the spraying quantity.
9. the production method of alignment film as claimed in claim 8, which is characterized in that the subregion includes that diffusion conditions are higher than institute
State the first subregion of viewing area；
The spraying quantity of first subregion is lower than the spraying quantity of the viewing area.
10. the production method of alignment film as claimed in claim 8, which is characterized in that the subregion includes that diffusion conditions are lower than
Second subregion of the viewing area；
The spraying quantity of second subregion is higher than the spraying quantity of the viewing area.
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| CN114326217B (en) * | 2021-12-29 | 2023-04-25 | 北海惠科光电技术有限公司 | Coating method of alignment liquid and preparation method of array substrate |
| CN114721187A (en) * | 2022-04-28 | 2022-07-08 | 广州华星光电半导体显示技术有限公司 | Manufacturing method of alignment film and liquid crystal display panel |
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